The next generation of android phones are coming. Why switch from one phone from the same time period to another? If you want a new android, you should look at the hero.
Hero is a good one, or how about the galaxie/houdini(i think thats what tmo is going to call it) it has 8gb internal storage and the same specs as the hero. Not to mention the "Rachael " phone looks amazing.
I might consider the Hero if T-Mobile had it, but I strongly prefer a real keyboard over the on-screen.
I'm hoping a 2nd-gen HTC Android device with a keyboard shows up on T-mobile just as my 2 year agreement runs out :)
That would be nice, although i have a strong feeling by next year there will be at least 5 androids for every carrier. Tmobile should have three after October not including the G1